<!doctype html>
<!--
Copyright (c) 2014 The Polymer Project Authors. All rights reserved.
This code may only be used under the BSD style license found at http://polymer.github.io/LICENSE.txt
The complete set of authors may be found at http://polymer.github.io/AUTHORS.txt
The complete set of contributors may be found at http://polymer.github.io/CONTRIBUTORS.txt
Code distributed by Google as part of the polymer project is also
subject to an additional IP rights grant found at http://polymer.github.io/PATENTS.txt
-->
<html>
<head>
  <meta charset="UTF-8">
  <title>core-selector-next-previous-wrap</title>
  <meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0">

  <script src="../../platform/platform.js"></script>
  <script src="../../web-component-tester/browser.js"></script>

  <link rel="import" href="../core-selector.html">

  <style>
    .core-selected {
      background: #ccc;
    }
  </style>

</head>
<body unresolved>

  <core-selector id="selector" selected="0">
    <div>Item 1</div>
    <div>Item 2</div>
    <div>Item 3</div>
  </core-selector>

  <script>

    var s = document.querySelector('#selector');

    function assertAndSelect(method, expectedIndex, wrap) {
      return function(done) {
        assert.equal(s.selected, expectedIndex);
        s[method](wrap);
        asyncPlatformFlush(done);
      }
    }

    suite('next/previous', function() {

      test('selectNext(true) wraps', function(done) {
        assert.equal(s.selected, 0);

        async.series([
          assertAndSelect('selectNext', 0, true),
          assertAndSelect('selectNext', 1, true),
          assertAndSelect('selectNext', 2, true),
          function(done) {
            assert.equal(s.selected, 0);
            done();
          }
        ], done);
      });

      test('selectPrevious(true) wraps', function(done) {
        assert.equal(s.selected, 0);

        async.series([
          assertAndSelect('selectPrevious', 0, true),
          assertAndSelect('selectPrevious', 2, true),
          assertAndSelect('selectPrevious', 1, true),
          function(done) {
            assert.equal(s.selected, 0);
            done();
          }
        ], done);
      });

      test('selectNext() does not wrap', function(done) {
        assert.equal(s.selected, 0);

        async.series([
          assertAndSelect('selectNext', 0),
          assertAndSelect('selectNext', 1),
          assertAndSelect('selectNext', 2),
          assertAndSelect('selectNext', 2),
          assertAndSelect('selectNext', 2),
          function(done) {
            s.selected = 0;
            asyncPlatformFlush(done);
          }
        ], done);
      });

      test('selectPrevious() does not wrap', function(done) {
        assert.equal(s.selected, 0);
        s.selected = 2;

        async.series([
          asyncPlatformFlush,
          assertAndSelect('selectPrevious', 2),
          assertAndSelect('selectPrevious', 1),
          assertAndSelect('selectPrevious', 0),
          assertAndSelect('selectPrevious', 0),
          assertAndSelect('selectPrevious', 0),
        ], done);
      });

    });

  </script>

</body>
</html>
